FTDI USB request block baud rate decoding

asked 2018-06-10 20:26:40 +0000

CyberJacob gravatar image

Hi folks, got an interesting one.

I'm trying to connect to an ELM327 via an FTDI FT232RL. Successfully connected using the proprietary software, but I can't get it to respond to direct AT commands, and none of the baud rates I'm sending get any useful response from the device.

I captured the setup packets the proprietary software sends before it sends data over the serial bus, but all wireshark shows is that they are USB request blocks, and doesn't decode the actual baud rate, etc. from them. Any way I can get that data out of there?

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